A group of prominent South Australian business people, academics and scientists sign an open letter to the state's politicians urging them to keep discussion alive on building an international nuclear waste dump.

A truck driver on trial after ploughing into a car at Murray Bridge allegedly tells a doctor he was agitated with a vehicle behind him and may have moved into the oncoming lane purposefully, but doubts emerge under cross-examination.

Cameras are being strapped to feral cats outside Roxby Downs, in South Australia, as researchers monitor their eating habits amid fears the felines will turn to eating native animals after the release of the newest strain of rabbit calicivirus.

A truck driver who claims he had a coughing fit and blacked out moments before a fatal crash at Murray Bridge told his doctor he had crashed his vehicle twice before the 2015 accident for the same reason, a court hears.